Classify and Describe epithelial tiss...

Classify and Describe epithelial tissue on the basis of structural Modifications of cells .

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(i) List main characteristics of epithelial tissue. (ii) Enlist the position, structure and functions of squamous, cuboidal, columnar, cíliated and glandular epithelia. (iii) Enlist the position, structure and functions of stratified and transitional epithelia.

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In epithelial tissue

Cells are compactly packed with large amounts of intercellular matrix

A free surfaceis present which faces either a body fluid or the outside environment

The tissue provides a covering or lining for all parts of the body

The cells are always loosely packed with little intracellular matrix

Epithelial tissue is

Protective covering

Reproductive structure

Nerve cells

Corpuscles.

The epithelial tissues are of

Three types, namely, squamous, cuboidal and columnar epithelium

Four types, namely, squamous, cuboidal, columnar and ciliated epithelium

Two types, as, simple and compound epithelium

Two types, as, simple and complex epithelium